J.K. Rowling has announced that a new Harry Potter story is coming to London theater next year. The play is called Harry Potter and the Cursed Child, and she went out of her way to say that the play is not a prequel to the existing books.
"To answer one inevitable (and reasonable!) question — why isn't Cursed Child a new novel? — I am confident that when audiences see the play they will agree that it was the only proper medium for the story," Rowling said via Twitter.
The play is a collaboration between herself, writer Jack Thorne and director John Tiffany. Not much else is known about the production, but the Daily Mail reported that the play "delves into what happened to Harry’s parents — Lily Evans Potter and James Potter — before they were killed by Lord Voldemort, forcing an infant Harry to be raised in miserable circumstances by his mother’s sister, Petunia, her horrid husband Vernon and their spoiled son Dudley."
With Rowling herself being so tight-lipped about the plot, I would take that information with a grain of salt. "I don't want to say too much more, because I don't want to spoil what I know will be a real treat for fans," she tweeted.